Is it somehow possible to have certain output appear in a different color in the IPython Notebook? For example, something along the lines of:
print(\"Hello
Not with raw Python print. You will have to define a _repr_html_ on an object and return it or call IPython.lib.display(object_with_repr_html).
I guess you could overwrite the built-in print to do it automatically...
You could inspire from http://nbviewer.ipython.org/5098827, code in a gist on github, ML discussion here.